If you like snow, the news is good. The storm is progressing well and the expected snowfall totals appear to be right on track as of the Noon hour.
The snow has ended for the time being in some locations southwest of Chicago. This break in the precipitation appeared to be headed for Chicago, but it won’t quite make it. That’s because the upper level low which is one of the forcing mechanisms for snowflake development, is starting to drift east. This will allow the snow area to pivot around the low pressure, keeping most communities north of I-80 in the thick of the storm.
Here is what you can expect for the rest of the day
Through 3PM: A steady light to moderate snow will continue across most of the Chicago area, especially north of I-80. Travel conditions will slowly deteriorate as the snow begins to pile up.
4PM to 9PM: As winds increase and begin to swing from the east to the northeast, bands of heavy “lake enhanced” snow will develop over Lake (IL), Cook and DuPage Counties, resulting in very slick and snow packed road surfaces. Periods of severely limited visibility are also likely in the heavier snow bands.
6PM: Storm accumulation by 6PM will be in the 5″ to 8″ range.
9PM: Periods of snow continue, heavy at times within 10 miles of Lake Michigan. Winds will increase to 20 to 35mph, resulting in considerable blowing and drifting of the light, fairly fluffy snow. Travel may become downright dangerous as blizzard or near blizzard conditions will be possible in open and rural areas, especially along and south of Interstate 80.
6AM Wednesday: Total storm accumulation of 8″ to 12″. A few locations may see up to 14 inches.
Legend for map below:
Winter Storm Warning: Red
Winter Weather Advisory: White
Blizzard Watch: Counties outlined in pink